RM-825 (global): 2G up to 15.4 hours – 3G up to 8.1 hoursRM-824 (AT&T): 2G up to 6.2 hours – 3G up to 7.5 hoursRM-826 (China): 2G up to 9.1 hours – 3G up to 9.8 hours

Stand-by time

RM-825 (global): 2G up to 360 hours – 3G up to 360 hoursRM-824 (AT&T): 2G up to 260 hours – 3G up to 260 hoursRM-826 (China): 2G up to 456 hours – 3G up to 456 hours

RM-825 (global): Video Playback Time up to 5.6 hoursRM-825 (global): Video Recording Time up to 2.7 hoursRM-825 (global): Video Call Time up to 3.0 hoursRM-825 (global): Music Playback Time up to 61.0 hoursRM-825 (global): WLAN Browsing Time up to 6.0 hours